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4 years ago

X - 5y = -15 if x = -5

Mathematics

2 answers:

Inga [223]4 years ago

7 0

Answer:

If x= -5 y=2

Step-by-step explanation:

1. Plug in -5 in X then solve for Y

2. Solve for y

-5 - 5y = -15

-5y= -10

y= 2

Hope this helps!

Juli2301 [7.4K]4 years ago

3 0

Answer:

y = 2

Step-by-step explanation:

First, put the -5 in for x:

-5 - 5y = -15

Then, add five to both sides to get - 5y by itself:

-5y = -10

Finally, divide both sides by -5 to get y:

y = 2

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5. Since f(1)=f(3) and $1\neq 3$ then, f isn't one-to-one

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